Screw-cap closure.



No. 707,320. Patented Aug. |9,.|'9o2`.

H. J. s. HALL.

.SCREW GAP CLOSUBE.

(Application led Feb. 12, 1902.)

(No Model.)

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UNrrEn STATES ATENT OFFICE.

HENRY J. S. HALL, OFVNEW YORK, N. Y.

SCREW-CAP cLosuRE.

SPECIFICATION forming part of Letters Patent No. 707,320, dated August19, 1902;

Application tlled February 12, 1902. Serial No. 93,740. (No model.)

To ir/ZZ whom 15 1v1/ay concern.-

Be it known that I, HENRY J. S. HALL, a citizen of the United States ofAmerica, and a resident of New York city, in the State of New York, haveinvented a new and useful Improvement in Screw-Cap Closures, of whichthe following is a specification.

This invention relates primarily to the closures of original packages orreceptacles for tooth-powder adapted for conveniently discharging thecontents upon the tooth-brush and to be tightly reclosed, so as to befree 'from liability to the accidental escape of the powder intraveling-bags and the like. Another characteristic aimed at in suchreceptacles is that it is rendered impossible or dif ficult to refillthem when the original contents are exhausted in order that the trade,-marks and otherindicia of such original contents inay not be misapplied.

The improved closure may be used for any box, bottle, or -jar forpowders, liquids, or semisolids. As regards construction it is of thattype in which the closure is constructed on the principle ofthe screwHeretofore the externally-applied screwcap has not been utilized inpowder-boxes, so-

far as I am aware, owing to the impracticability of employing gaskets insuch small closures, the difficulty of otherwise rendering the cappowder-tight, and the greater diiiij The latter is formed by bendinginward a lip culty of guarding against reuse withoutundue expense.

The objects of the present invention arepto render anexternally-applied-screw-cap powder-tight and inseparable, to facilitatethe discharge of the powder upon a tooth-brush by the location of themouth at the 'front of the box, to provide at the same time forgraduating the discharge with nicety, and to embody these advantages ina simple and inexpensive receptacle which can be economically given awaywith the contents by a manufacturer to promote the use of a givenpowder, liquid, or semisolid.

Asheet of drawings accompanies this speciication as part thereof.

Figures 1 and 2 are front views showing an improved powder-boxrespectively closed and open. Fig. 3 represents a magnified longitudinalsection on the line A B, Fig. 2. Fig.

4 represents a top view, partly in section, on

the same material as the cover 2.

`The body llis provided in any approved way with the customary label a,-indicating the front of the box, and is filled at a toothpowderfactory, for example.

The cover 2, carrying the cap 3, is then applied and by means of adepending marginal iiange b or its equivalent is inseparably attached tothe-body l. The other features of the cover 2 are a conical top c,against which y,the lower edgeof the cap 3V closes powdertight, asinFig. l, a screw-threaded nozzle d,

a closed upper end e, an outletf in the front of the nozzle,near itslower end, and a stop g, raised on the external surface of the nozzle ata convenient point above the plane of the outletf. y y

The cap 3 is composed of screw-threaded side walls h, fitted to thenozzle d, a closed upper end i, amilled rim j, and a stop 7c.

of themetal of the cap adjacent to a slit in its.. lower edge and coactswith the stop g when the box'is fully opened, as in Figs. 2, 3, and 4,to prevent the accidental escape and f loss -of the cap.

It will be apparent that by simply turning the'cap 3 between finger andthumb the out.- let f may be opened to any desired extent with thegreatest nicety of adjustment and .that Whether the outlet be partiallyor fully IOO the improved box can be refilled is through the contractedoutlet f.

rlhe stops g and 7o are shown at the front of the box for convenience.One or both of them may be located at the back, and this is preferablein the case of the stop k. A single turn of the screw-cap 3 may berendered suicient to fully open the outlet f. The term conical mayinclude any suitable dome-shaped construction, and other likemodiiications will suggest themselves to those skilled in the art.

Having thus described said improvement, I claim as my invention anddesire to patent under this specificationl. A closure formed by ascrew-threaded nozzle constructed with an outlet in its front near itslower end and provided with a stop above the plane of said outlet, andan imperforate screw-cap having an in Wardly-projecting stop to engagewith said stop on the nozzle when the outlet is fully opened.

2. A closure formed by a screw-threaded nozzle constructed with anoutlet in its front near its lower end and provided with a stop abovethe plane of said outlet, and an imperforate screw-cap having aninwardly-projecting stop at its lower edge to engage with said stop onthe nozzle when the outlet is fully opened.

3. A. closure formed by a screw-threaded nozzle constructed with anoutlet in its front near its lower end and provided with a stop abovethe plane of said outlet, and an imperforate screw-cap having aninwardly-projecting stop integral with the body of the cap to engagewith said stop on the nozzle when the outlet is fully opened.

4. The combination, in a powder-box, of a suitable body, a cover for thesame having a conical top and a screw-threaded nozzle having an outletin its front near its lower end and provided with a stop on its outersurface above the plane of said outlet, and an imperforate screw-caphaving its lowei edge provided with a stop to engage with said stop onthe nozzle When the outlet is fully opened, and adapted to closepowder-tight against said conical top.

5. The combination, in a powder-box having a screw-cap closure, of asuitable body having its front designated, a cover, inseparably attachedto said body, having a screwthreaded nozzle provided with a closed upperend and an outlet in its front near its lower end, and a screw-capinclosing said closed 11p-- HENRY J. S. HALL.

Witnesses IRAD I-I AWLEY, CHARLES WILLIAMSON.

